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Enforce validation checkpoints

Riverbend Retail's webhook cheerfully marks every order as processed, even when order_id is missing or amount is zero. That quietly poisons downstream steps — finance only notices when the numbers refuse to reconcile.

Import the starter and place two If gates before Process Order, each routing bad rows to Stop and Error with a clear message so invalid payloads never reach processing.

This exercise is part of the course

Intermediate Workflow Automation with n8n

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